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Cartilage regeneration

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https://www.readbyqxmd.com/read/28934880/three-dimensional-bioprinting-and-its-potential-in-the-field-of-articular-cartilage-regeneration
#1
Vivian H M Mouser, Riccardo Levato, Lawrence J Bonassar, Darryl D D'Lima, Daniel A Grande, Travis J Klein, Daniel B F Saris, Marcy Zenobi-Wong, Debby Gawlitta, Jos Malda
Three-dimensional (3D) bioprinting techniques can be used for the fabrication of personalized, regenerative constructs for tissue repair. The current article provides insight into the potential and opportunities of 3D bioprinting for the fabrication of cartilage regenerative constructs. Although 3D printing is already used in the orthopedic clinic, the shift toward 3D bioprinting has not yet occurred. We believe that this shift will provide an important step forward in the field of cartilage regeneration. Three-dimensional bioprinting techniques allow incorporation of cells and biological cues during the manufacturing process, to generate biologically active implants...
October 2017: Cartilage
https://www.readbyqxmd.com/read/28934878/surgical-preparation-for-articular-cartilage-regeneration-in-the-osteoarthritic-knee-joint
#2
Joerg Mika, Thomas O Clanton, Catherine G Ambrose, Raimund W Kinne
PURPOSE: Autologous chondrocyte implantation (ACI) is a treatment option even in early osteoarthritis (OA). Surgical preparation for ACI should avoid penetration of the subchondral bone plate to prevent hemorrhage, fibrin clot formation, and subsequent activation of the inflammatory response. HYPOTHESIS: Current surgical procedures with ring curettes preserve the integrity of the subchondral bone plate, even in patients with OA. METHODS: Subchondral femoral bone plates ( n = 40) of OA knees undergoing total knee arthroplasty were prepared in vivo using standard, non-brute-force debridement for ACI...
October 2017: Cartilage
https://www.readbyqxmd.com/read/28934875/natural-type-ii-collagen-hydrogel-fibrin-sealant-and-adipose-derived-stem-cells-as-a-promising-combination-for-articular-cartilage-repair
#3
Mariana Lazarini, Pedro Bordeaux-Rego, Renata Giardini-Rosa, Adriana S S Duarte, Mariana Ozello Baratti, Alessandro Rozim Zorzi, João Batista de Miranda, Carlos Lenz Cesar, Ângela Luzo, Sara Teresinha Olalla Saad
Objective Articular cartilage is an avascular tissue with limited ability of self-regeneration and the current clinical treatments have restricted capacity to restore damages induced by trauma or diseases. Therefore, new techniques are being tested for cartilage repair, using scaffolds and/or stem cells. Although type II collagen hydrogel, fibrin sealant, and adipose-derived stem cells (ASCs) represent suitable alternatives for cartilage formation, their combination has not yet been investigated in vivo for focal articular cartilage defects...
October 2017: Cartilage
https://www.readbyqxmd.com/read/28932116/silk-fibroin-cartilage-extracellular-matrix-scaffolds-with-sequential-delivery-of-tgf-%C3%AE-3-for-chondrogenic-differentiation-of-adipose-derived-stem-cells
#4
Qiang Yang, Bin-Hong Teng, Li-Na Wang, Kun Li, Chen Xu, Xin-Long Ma, Yang Zhang, De-Ling Kong, Lian-Yong Wang, Yan-Hong Zhao
A 3-D scaffold that simulates the microenvironment in vivo for regenerating cartilage is ideal. In this study, we combined silk fibroin and decellularized cartilage extracellular matrix by temperature gradient-guided thermal-induced phase separation to produce composite scaffolds (S/D). Resulting scaffolds had remarkable mechanical properties and biomimeticstructure, for a suitable substrate for attachment and proliferation of adipose-derived stem cells (ADSCs). Moreover, transforming growth factor β3 (TGF-β3) loaded on scaffolds showed a controlled release profile and enhanced the chondrogenic differentiation of ADSCs during the 28-day culture...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28929935/development-of-arginine-glycine-aspartate-immobilized-3d-printed-poly-propylene-fumarate-scaffolds-for-cartilage-tissue-engineering
#5
Chi Bum Ahn, Youngjo Kim, Sung Jean Park, Yongsung Hwang, Jin Woo Lee
Poly(propylene fumarate) (PPF) has known to be a good candidate material for cartilage tissue regeneration because of its excellent mechanical properties during its degradation processes. Here, we describe the potential application of PPF-based materials as 3D printing bioinks to create macroporous cell scaffolds using micro-stereolithography (MSTL). To improve cell-matrix interaction of seeded human chondrocytes within the PPF-based 3D scaffolds, we immobilized arginine-glycine-aspartate (RGD) peptide onto the PPF scaffolds...
September 20, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28919746/in-vitro-and-in-vivo-studies-of-a-novel-bacterial-cellulose-based-acellular-bilayer-nanocomposite-scaffold-for-the-repair-of-osteochondral-defects
#6
Jyoti V Kumbhar, Sachin H Jadhav, Dhananjay S Bodas, Amruta Barhanpurkar-Naik, Mohan R Wani, Kishore M Paknikar, Jyutika M Rajwade
Bacterial cellulose (BC) is a naturally occurring nanofibrous biomaterial which exhibits unique physical properties and is amenable to chemical modifications. To explore whether this versatile material can be used in the treatment of osteochondral defects (OCD), we developed and characterized novel BC-based nanocomposite scaffolds, for example, BC-hydroxyapatite (BC-HA) and BC-glycosaminoglycans (BC-GAG) that mimic bone and cartilage, respectively. In vitro biocompatibility of BC-HA and BC-GAG scaffolds was established using osteosarcoma cells, human articular chondrocytes, and human adipose-derived mesenchymal stem cells...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28917911/injectable-glycosaminoglycan-protein-nano-complex-in-semi-interpenetrating-networks-a-biphasic-hydrogel-for-hyaline-cartilage-regeneration
#7
Janani Radhakrishnan, Anuradha Subramanian, Swaminathan Sethuraman
Articular hyaline cartilage regeneration remains challenging due to its less intrinsic reparability. The study develops injectable biphasic semi-interpenetrating polymer networks (SIPN) hydrogel impregnated with chondroitin sulfate (ChS) nanoparticles for functional cartilage restoration. ChS loaded zein nanoparticles (∼150nm) prepared by polyelectrolyte-protein complexation were interspersed into injectable SIPNs developed by blending alginate with poly(vinyl alcohol) and calcium crosslinking. The hydrogel exhibited interconnected porous microstructure (39...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28915523/-biologic-reconstruction-of-full-sized-cartilage-defects-of-the-hip-a-guideline-from-the-dgou-group-clinical-tissue-regeneration-and-the-hip-committee-of-the-aga
#8
Stefan Fickert, Matthias Aurich, Dirk Albrecht, Peter Angele, Lorenz Büchler, Michael Dienst, Christoph Erggelet, Jürgen Fritz, Christoph Gebhart, Hans Gollwitzer, Moritz Kindler, Christoph Lampert, Henning Madry, Gregor Möckel, Phillip Niemeyer, Jörg Schröder, Christian Sobau, Gunter Spahn, Wolfgang Zinser, Stefan Landgraeber
Background Symptomatic pre-arthritic deformities such as femoroacetabular impingement (FAI) or hip dysplasia often lead to localised cartilage defects and subsequently to osteoarthritis. The present review of the working group "Clinical Tissue Regeneration" of the German Society of Orthopaedics and Trauma (DGOU) and the hip committee of the AGA (German speaking Society for Arthroscopy and Joint Surgery) provides an overview of current knowledge of the diagnosis and surgical treatment of cartilage defects, in order to infer appropriate therapy recommendations for the hip...
September 15, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28914392/alginate-hyaluronic-acid-hydrogel-delivery-system-characteristics-regulate-the-differentiation-of-periodontal-ligament-stem-cells-toward-chondrogenic-lineage
#9
Sahar Ansari, Ivana M Diniz, Chider Chen, Tara Aghaloo, Benjamin M Wu, Songtao Shi, Alireza Moshaverinia
Cartilage tissue regeneration often presents a challenging clinical situation. Recently, it has been shown that Periodontal Ligament Stem Cells (PDLSCs) possess high chondrogenic differentiation capacity. In this study, we developed a stem cell delivery system based on alginate/hyaluronic acid (HA) loaded with TGF-β1 ligand, encapsulating PDLSCs; and investigated the chondrogenic differentiation of encapsulated cells in alginate/HA hydrogel microspheres in vitro and in vivo. The results showed that PDLSCs, as well as human bone marrow mesenchymal stem cells (hBMMSCs), as the positive control, were stained positive for both toluidine blue and alcian blue staining, while exhibiting high levels of gene expression related to chondrogenesis (Col II, Aggrecan and Sox-9), as assessed via qPCR...
September 15, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28914207/a-systematic-review-and-meta-analysis-of-clinical-trials-of-mesenchymal-stem-cell-therapy-for-cartilage-repair
#10
A Borakati, Reza Mafi, P Mafi, Wasim Khan
Osteoarthritis (OA) is a major global burden creating significant morbidity worldwide. Current curative therapies are expensive, challenging to access and have significant risks, making them infeasible and difficult in many cases. Mesenchymal stem cells (MSCs) can be applied to joints and may regenerate the cartilage damaged in OA, this therapy may be advantageous to existing treatments. We systematically reviewed clinical trials of MSCs for cartilage repair and provide an overview of the literature in this area here...
September 15, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28902474/electrospun-nanofibrous-meshes-cultured-with-wharton-s-jelly-stem-cell-an-alternative-for-cartilage-regeneration-without-the-need-of-growth-factors
#11
Marta Alves da Silva, Albino Martins, Ana R Costa-Pinto, Nélson Monteiro, Susana Faria, Rui L Reis, Nuno M Neves
Many efforts are being directed worldwide to the treatment of OA-focal lesions. The majority of those efforts comprise either the refinement of surgical techniques or combinations of biomaterials with various autologous cells. Herein, we tested electrospun polycaprolactone (PCL) nanofibrous meshes for cartilage tissue engineering. For that, articular chondrocytes (hACs) isolated from human osteoarthritic joints and Wharton's Jelly Stem Cells (hWJSCs) were cultured on electrospun nanofiber meshes, without adding external growth factors...
September 13, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28900383/effects-of-platelet-rich-plasma-and-chondrocyte-co-culture-on-msc-chondrogenesis-hypertrophy-and-pathological-responses
#12
Rouhallah Ramezanifard, Mahboubeh Kabiri, Hana Hanaee Ahvaz
Regarding the inadequate healing capability of cartilage tissue, cell-based therapy is making the future of cartilage repair and regeneration. Mesenchymal stem cells (MSC) have shown great promise in cartilage regeneration. However, a yet-unresolved issue is the emergence of hypertrophic and pathologic markers during in vitro MSC chondrogenesis. Articular chondrocytes (AC) can suppress the undesired hypertrophy when co-cultured with MSC. On the other hand, platelet rich plasma (PRP), is considered potentially effective for cartilage repair and in-vitro chondrogenesis...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28899816/enzyme-crosslinked-gene-activated-matrix-for-the-induction-of-mesenchymal-stem-cells-in-osteochondral-tissue-regeneration
#13
Yi-Hsuan Lee, Hsi-Chin Wu, Chia-Wei Yeh, Chen-Hsiang Kuan, Han-Tsung Liao, Horng-Chaung Hsu, Jui-Che Tsai, Jui-Sheng Sun, Tzu-Wei Wang
The development of osteochondral tissue engineering is an important issue for the treatment of traumatic injury or aging associated joint disease. However, the different compositions and mechanical properties of cartilage and subchondral bone show the complexity of this tissue interface, making it challenging for the design and fabrication of osteochondral graft substitute. In this study, a bilayer scaffold is developed to promote the regeneration of osteochondral tissue within a single integrated construct...
September 9, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28892261/fabrication-of-trabecular-bone-templated-tissue-engineered-constructs-by-3d-inkjet-printing
#14
Joseph P Vanderburgh, Shanik J Fernando, Alyssa R Merkel, Julie A Sterling, Scott A Guelcher
3D printing enables the creation of scaffolds with precisely controlled morphometric properties for multiple tissue types, including musculoskeletal tissues such as cartilage and bone. Computed tomography (CT) imaging has been combined with 3D printing to fabricate anatomically scaled patient-specific scaffolds for bone regeneration. However, anatomically scaled scaffolds typically lack sufficient resolution to recapitulate the <100 micrometer-scale trabecular architecture essential for investigating the cellular response to the morphometric properties of bone...
September 11, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28888902/a-small-molecule-inhibitor-of-the-wnt-pathway-sm04690-as-a-potential-disease-modifying-agent-for-the-treatment-of-osteoarthritis-of-the-knee
#15
V Deshmukh, H Hu, C Barroga, C Bossard, S Kc, L Dellamary, J Stewart, K Chiu, M Ibanez, M Pedraza, T Seo, L Do, S Cho, J Cahiwat, B Tam, J R S Tambiah, J Hood, N E Lane, Y Yazici
OBJECTIVES: Osteoarthritis (OA) is a degenerative disease characterized by loss of cartilage and increased subchondral bone within synovial joints. Wnt signaling affects the pathogenesis of OA as this pathway modulates both the differentiation of osteoblasts and chondrocytes, and production of catabolic proteases. A novel small-molecule Wnt pathway inhibitor, SM04690, was evaluated in a series of in vitro and in vivo animal studies to determine its effects on chondrogenesis, cartilage protection and synovial-lined joint pathology...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28887704/-indication-and-limitations-of-meniscus-replacement
#16
REVIEW
C Stärke, S Kopf, R Becker
BACKGROUND: Meniscal lesions are among the most important musculoskeletal disorders and are the most common indication for knee joint arthroplasty. However, the structural integrity and function is rarely retained, and a loss of tissue results. Thus, there is a huge demand for meniscal replacement options. CURRENT PROCEDURES: Autografts were used in the past but did not fulfill expectations. Meniscus allografts have been developed to be a viable treatment option...
September 8, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28879659/extracellular-matrix-particle-glycosaminoglycan-composite-hydrogels-for-regenerative-medicine-applications
#17
Vince Beachley, Garret Ma, Chris Papadimitriou, Matt Gibson, Michael Corvelli, Jennifer Elisseeff
Tissue extracellular matrix (ECM) is a complex material made up of fibrous proteins and ground substance (glycosaminoglycans, GAGs) that are secreted by cells. ECM contains important biological cues that modulate cell behaviors, and it also serves as a structural scaffold to which cells can adhere. For clinical applications, where immune rejection is a constraint, ECM can be processed using decellularization methods intended to remove cells and donor antigens from tissue or organs, while preserving native biological cues essential for cell growth and differentiation...
September 6, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28874815/injectable-and-thermosensitive-tgf-%C3%AE-1-loaded-pcec-hydrogel-system-for-in-vivo-cartilage-repair
#18
Tengfei Zhou, Xiaolong Li, Guo Li, Taoran Tian, Shiyu Lin, Sirong Shi, Jinfeng Liao, Xiaoxiao Cai, Yunfeng Lin
Chondral defects pose a great challenge for clinicians to manage owing to the limited capacity for self-healing. Various traditional approaches have been adopted for the repair of these defects with unsatisfactory results. Cartilage tissue engineering techniques have emerged as promising strategies to enhance regeneration and overcome these traditional shortcomings. The cell-homing based technique is considered the most promising owing to its unique advantages. Thermosensitive hydrogels have been applied as scaffolds for biomedical applications with smart sol-gel response for altering environmental temperature...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28868922/second-look-arthroscopic-evaluation-and-clinical-outcome-after-supramalleolar-osteotomy-for-medial-compartment-ankle-osteoarthritis
#19
Hong-Geun Jung, Dong-Oh Lee, Sang-Hun Lee, Joon-Sang Eom
BACKGROUND: The aim of this study was to evaluate the clinical and radiologic outcomes of medial compartment ankle osteoarthritis after supramalleolar osteotomy (SMO) without the bone marrow stimulation procedure and confirm cartilage recovery by second-look arthroscopy. METHODS: Twenty-two ankles that were followed for more than 1 year after SMO were retrospectively reviewed. Visual analog scale pain scores and American Orthopaedic Foot & Ankle Society ankle-hindfoot scores were used for functional evaluations...
September 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28868091/non-invasive-raman-spectroscopy-and-quantitative-real-time-pcr-distinguish-among-undifferentiated-human-mesenchymal-stem-cells-and-redifferentiated-nucleus-pulposus-cells-and-chondrocytes-in-vitro
#20
Franziska Ehlicke, Natascha Köster, Denise Salzig, Peter Czermak
BACKGROUND: The most common cause of lower back pain is the pathological degeneration of the nucleus pulposus (NP). Promising NP regeneration strategies involving human mesenchymal stem cells (hMSCs) would require specific markers to confirm successful differentiation into the NP lineage and to distinguish the articular cartilage (AC). OBJECTIVE: We sought specific NP mRNA markers that are upregulated in native NP cells but not in dedifferentiated NP cells, undifferentiated hMSCs or chondrocytes...
2017: Open Biomedical Engineering Journal
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